Newton's law of cooking
T(t)= Ta+(To-Ta ) e^(-kt)
or search it up online for a cleaner formula.
Anyways, what does the cooling constant k represent. What do larger or smaller values of k mean?
Thanks
They're not always orthogonal I think. The formula for the magnetic force on a charged particle:
F = qvB sin(theta). The sin is the angle between the velocity vector of the charged particle and the magnetic field, and it doesn't have to be 90.
Is the right hand rule for determining the direction of the magnetic field, force, and current only used when the aforementioned vectors are orthogonal to each other? Or, can the RHR be used in other cases as well?
How could you tell whether moving electrons in a certain region of space are being deflected by an electric field or by a magnetic field (or both)?
The answer from the textbook is:
If the moving electrons are changing speed as they are being deflected, then an electric field is present...
Maybe I'm not fully understanding the chain rule, but anyways I'll give my argument. At any given point the function e^(2x) is squared the original function of e^x. So why is the derivative of e^(2x), two times the squared the derivative of the e^x, and not just squared the derivative of the...
I used tap water for this experiment. I used a cable that has two ends to measure the voltage difference and put it inside the cup of water. The cable was attached to a LabQuest, and I graphed the change in voltage over time as the water froze. I voltage went up to 0.400 V and down to -0.200 V...
I'm going to look into the galvanic reactions because I'm using a wire which is in the water and attaching that to a probe, and both the wire and the probe are in the water.
Could you please elaborate on what fractures in ice means?
What I'm saying is I put a voltmeter in the freezing water, used a Vernier Labquest to graph the change in voltage, and what I found from the graph was that the voltage was changing and went as high as 0.400 V and down to -0.200 V.
Hi, I'm doing an experiment, where I'm freezing water, and I'm measuring the voltage of the water as it is freezing. For some time there is not much of voltage detected, but all of a sudden there is some voltage detected, and it fluctuates from positive to negative voltage, and back to positive...
How is it that in both cases we deal with 1 mol worth of reactions? In the first equation you wrote, it would be 1 mol worth of reactions because you produce 1 mol of water, but in the second equation, you must have 2 mols of reactions, since you produce 2 mol of water, n'est pas?